# Category:Closedness under Mappings

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This category contains results about Closedness under Mappings.

Definitions specific to this category can be found in Definitions/Closedness under Mappings.

Let $f: S \to T$ be a mapping.

Let $S' \subseteq S$.

Then $S'$ is **closed under $f$** if and only if:

- $f \sqbrk {S'} \subseteq S'$

where $f \sqbrk {S'}$ is the image of $S'$ under $f$.

## Subcategories

This category has only the following subcategory.

## Pages in category "Closedness under Mappings"

The following 3 pages are in this category, out of 3 total.